ionized free radical

例句：

1. 1. The ionized gas is highly reactive and can react with other substances.
   离子化气体高度活性，可以与其他物质反应。
2. 2. Ionized particles are known to have a higher energy state than neutral particles.
   已知离子化粒子的能量状态高于中性粒子。
3. 3. In the process of ionization, atoms lose electrons and become ions.
   在电离过程中，原子失去电子并成为离子。